Numerical Investigation of Frequency Reconfigurable Antenna with Liquid Metamaterials for X-band

• DOI: 10.55579/jaec.202261.362
• Publication Date: 2022-04-01T09:18:54Z
• Authors: Shobhit K. Patel; Cong Danh Bui; Truong Khang Nguyen; Juveriya Parmar; Quang Minh Ngo
• Keywords: Reconfigurable; Antenna (radio); Beamwidth; Aerospace Engineering; FOS: Mechanical engineering; Metasurfaces for Antenna and Radar Applications; PIN diode; 02 engineering and technology; Frequency Selective Surfaces; Control reconfiguration; Microstrip; Bandwidth (computing); Metamaterial; Engineering; Reconfigurable antenna; Microstrip Antennas; Metamaterial antenna; FOS: Electrical engineering, electronic engineering, information engineering; 0202 electrical engineering, electronic engineering, information engineering; Millimeter-Wave Applications; Reflection coefficient; Electrical and Electronic Engineering; Optoelectronics; Microstrip antenna; Embedded system; Antenna Design and Applications; Diode; Slot antenna; Physics; Optics; Computer science; Substrate Integrated Waveguide; Materials science; Physical Sciences; Telecommunications; Antenna efficiency; Microwave Engineering and Waveguides

In this paper, a frequency reconfigurable liquid metamaterial microstrip-based radiating structure is proposed and it is an attempt toward achieving reconfiguration in liquid metamaterial-based microstrip radiating structures. Reconfigurable antenna design is superstrated with five liquid metamaterial layers based on a distilled water split-ring resonator. Superstrate layers give enhancement from 6.5 dB to 13.1 dB in gain of the proposed antenna. A patch is reconfigured through PIN diodes as RF switches. Switching ‘on’ and ‘off’ states of PIN diodes are used for reconfiguration of frequency and radiation patterns. Analysis in terms of reflection coefficient, gain (dBi), radiation pattern, bandwidth (BW), and half-power beamwidth (HPBW) is obtained in switch-off and switch-on state. The proposed design provides enhanced gain, reflection coefficient, and multiband characteristics in the 8-12 GHz range suitable for X-band satellite and radar applications. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium provided the original work is properly cited.